Difference between revisions of "Griffith correlation"

Revision as of 16:29, 27 March 2017

The Griffith correlation ^[1] is an empirical correlation which defines:

The bubble flow exist when:

\frac{q_g}{q_g + q_L} < L_B

^[2]

L_B = 1.071 - 0.2218 \frac{(v_g+v_L)^2}{D}

, with the limit

L_B \geqslant 0.13

^[2]

The gas holdup:

H_g = \frac{1}{2}\ \left ( 1 + \frac{v_g+v_L}{v_s} - \sqrt{ \left ( 1 + \frac{v_g+v_L}{v_s} \right )^2 - 4 \frac{v_g}{v_s}} \right )

^[2]

↑ Cite error: Invalid <ref> tag; no text was provided for refs named Griffith
↑ ^2.0 ^2.1 ^2.2 Cite error: Invalid <ref> tag; no text was provided for refs named Orkiszewski

@@ Line 1: / Line 1: @@
 __TOC__
 == Brief ==
-The [[Griffith correlation]] is an empirical correlation which defines:
+The [[Griffith correlation]] <ref name= Griffith /> is an empirical correlation which defines:
 * The boundary between the bubble and slug flow
 * The void fraction of gas in bubble flow - gas hold up '''H<sub>g</sub>'''